What terms someone can use your content? Can they post your articles on their blog? What if the blog is commercial? What if they don’t give attribution? Can they share it on Facebook? What about printing out copies to give to friends?
If you don’t have a clear, ready answer for these questions, your visitors won’t either and that, in turn, means they will make mistakes. Whether they are taking liberties with your content you don’t approve of or avoiding sharing content in ways you do want, they will make mistakes with your content and hurt its chances of being used properly.
As such, you need to quickly and easily convey to your readers what your rules are regarding your content if you ever hope for them to be followed.
Unfortunately, most bloggers don’t think about content licensing and the issue doesn’t come up until they find their work on a spam site or plagiarized on another blog. By that time, however, it’s often too late as the situation is likely already out of hand.
This makes now, before there is a problem, the time to think about content licensing as tomorrow may simply be too late.